. The mean incubation time for a type of fertilized egg kept at a certain temperature is 25 days. Suppose that the incubation ti
mes are approximately normally distributed with a standard deviation of 1 day. Complete parts (a) through(e) below.
(a) Draw a normal model that describes egg incubation times of these fertilized eggs.
(b) Find and interpret the probability that a randomly selected fertilized egg hatches in less than 23 days.
The probability that a randomly selected fertilized egg hatches in less than 23 days is _?__. (Round to four decimal places asneeded.)
(a) Draw a normal model that describes egg incubation times of these fertilized eggs.
(b) Find and interpret the probability that a randomly selected fertilized egg hatches in less than 23 days.
The probability that a randomly selected fertilized egg hatches in less than 23 days is _?__. (Round to four decimal places asneeded.)
1 answer:
Answer:
Step-by-step explanation:
Given that the mean incubation time for a type of fertilized egg kept at a certain temperature is 25 days.
Let X be the incubation time for a type of fertilized egg kept at a certain temperature is 25 days.
X is N(25, 1)
a) Normal curve is in the attached file
b) the probability that a randomly selected fertilized egg hatches in less than 23 days
=
we convert x into Z score and use std normal distn table to find probability
i.e. we can say only 2.5% proportion will hatch in less than 23 days.
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Answer: d.
Explanation:-
- The fundamental theorem of algebra tells that every non-constant single-variable polynomial with complex coefficients has at least one complex root.
- Corollary to the fundamental theorem tells that every polynomial of m>0 degree has exactly m zeroes.
Thus only option d. with degree 6 has exactly 6 roots.